CA3062383C - Systeme, dispositifs et procede d'approximation d'une origine geographique d'une transaction en cryptomonnaie - Google Patents

Systeme, dispositifs et procede d'approximation d'une origine geographique d'une transaction en cryptomonnaie Download PDF

Info

Publication number
CA3062383C
CA3062383C CA3062383A CA3062383A CA3062383C CA 3062383 C CA3062383 C CA 3062383C CA 3062383 A CA3062383 A CA 3062383A CA 3062383 A CA3062383 A CA 3062383A CA 3062383 C CA3062383 C CA 3062383C
Authority
CA
Canada
Prior art keywords
cryptocurrency
node
transaction
nodes
peer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CA3062383A
Other languages
English (en)
Other versions
CA3062383A1 (fr
Inventor
Marty Robert ANSTEY
Wojciech SZMIGIELSKI
Shone ANSTEY
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Blockchain Technology Group Inc dba Blockchain Intelligence Group
Original Assignee
Blockchain Technology Group Inc dba Blockchain Intelligence Group
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Blockchain Technology Group Inc dba Blockchain Intelligence Group filed Critical Blockchain Technology Group Inc dba Blockchain Intelligence Group
Publication of CA3062383A1 publication Critical patent/CA3062383A1/fr
Application granted granted Critical
Publication of CA3062383C publication Critical patent/CA3062383C/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/04—Payment circuits
    • G06Q20/06—Private payment circuits, e.g. involving electronic currency used among participants of a common payment scheme
    • G06Q20/065—Private payment circuits, e.g. involving electronic currency used among participants of a common payment scheme using e-cash
    • G06Q20/0655—Private payment circuits, e.g. involving electronic currency used among participants of a common payment scheme using e-cash e-cash managed centrally
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/104—Peer-to-peer [P2P] networks
    • H04L67/1044—Group management mechanisms 
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/04—Payment circuits
    • G06Q20/06—Private payment circuits, e.g. involving electronic currency used among participants of a common payment scheme
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/22—Payment schemes or models
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
    • G06Q20/32—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using wireless devices
    • G06Q20/322—Aspects of commerce using mobile devices [M-devices]
    • G06Q20/3224—Transactions dependent on location of M-devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/40—Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check credit lines or negative lists
    • G06Q20/401—Transaction verification
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/40—Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check credit lines or negative lists
    • G06Q20/401—Transaction verification
    • G06Q20/4016—Transaction verification involving fraud or risk level assessment in transaction processing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/40—Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check credit lines or negative lists
    • G06Q20/405—Establishing or using transaction specific rules
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
    • H04L51/21—Monitoring or handling of messages
    • H04L51/222—Monitoring or handling of messages using geographical location information, e.g. messages transmitted or received in proximity of a certain spot or area
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
    • H04L51/48—Message addressing, e.g. address format or anonymous messages, aliases
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/104—Peer-to-peer [P2P] networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/52—Network services specially adapted for the location of the user terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/28—Timers or timing mechanisms used in protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
    • H04L9/0637—Modes of operation, e.g. cipher block chaining [CBC], electronic codebook [ECB] or Galois/counter mode [GCM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3236—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using cryptographic hash functions
    • H04L9/3239—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using cryptographic hash functions involving non-keyed hash functions, e.g. modification detection codes [MDCs], MD5, SHA or RIPEMD
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3297—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving time stamps, e.g. generation of time stamps
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/50—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using hash chains, e.g. blockchains or hash trees
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q2220/00—Business processing using cryptography
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/56—Financial cryptography, e.g. electronic payment or e-cash

Landscapes

  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Strategic Management (AREA)
  • General Business, Economics & Management (AREA)
  • General Physics & Mathematics (AREA)
  • Finance (AREA)
  • Development Economics (AREA)
  • Economics (AREA)
  • Computing Systems (AREA)
  • Mathematical Physics (AREA)
  • Computer And Data Communications (AREA)

Abstract

Selon un aspect, un serveur d'approximation d'une origine géographique d'une transaction en cryptomonnaie, dans un réseau maillé poste-à-poste (P2P) de nuds de cryptomonnaie employant un protocole de commérage, comprend : un contrôleur d'interface de réseau, destiné à communiquer avec une pluralité de nuds de cryptomonnaie distribués géographiquement faisant partie du réseau maillé P2P ; et un processeur, en communication avec le contrôleur d'interface de réseau, conçu : pour recevoir, de chacun des nuds de cryptomonnaie distribués géographiquement : un indicateur temporel représentant une heure à laquelle une indication la plus précoce de la transaction a été reçue au niveau du nud de cryptomonnaie ; et un identifiant unique d'un poste du nud de cryptomonnaie, faisant partie du réseau maillé P2P, à partir duquel l'indication la plus précoce de la transaction a été reçue ; pour identifier, en fonction des indicateurs temporels reçus à partir des nuds de cryptomonnaie distribués géographiquement, l'un des postes en tant qu'initiateur le plus probable de la transaction ; et pour mapper l'identifiant unique avec une zone géographique.
CA3062383A 2017-05-01 2018-04-30 Systeme, dispositifs et procede d'approximation d'une origine geographique d'une transaction en cryptomonnaie Active CA3062383C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201762492621P 2017-05-01 2017-05-01
US62/492,621 2017-05-01
PCT/CA2018/050504 WO2018201237A1 (fr) 2017-05-01 2018-04-30 Système, dispositifs et procédé d'approximation d'une origine géographique d'une transaction en cryptomonnaie

Publications (2)

Publication Number Publication Date
CA3062383A1 CA3062383A1 (fr) 2018-11-08
CA3062383C true CA3062383C (fr) 2021-11-02

Family

ID=64015958

Family Applications (1)

Application Number Title Priority Date Filing Date
CA3062383A Active CA3062383C (fr) 2017-05-01 2018-04-30 Systeme, dispositifs et procede d'approximation d'une origine geographique d'une transaction en cryptomonnaie

Country Status (3)

Country Link
US (1) US20200111066A1 (fr)
CA (1) CA3062383C (fr)
WO (1) WO2018201237A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL248306B (en) 2016-10-10 2019-12-31 Verint Systems Ltd System and method for creating data sets for learning to recognize user actions
US10567156B2 (en) * 2017-11-30 2020-02-18 Bank Of America Corporation Blockchain-based unexpected data detection
US11593793B2 (en) * 2018-06-29 2023-02-28 Ncr Corporation Cryptocurrency payment and refund processing on a transaction terminal
US10636030B1 (en) * 2018-11-06 2020-04-28 Capital One Services, Llc System and method for creating a secure mesh network utilizing the blockchain
US11960473B2 (en) 2019-01-15 2024-04-16 Fisher-Rosemount Systems, Inc. Distributed ledgers in process control systems
US11115218B2 (en) * 2019-01-15 2021-09-07 Fisher-Rosemount Systems, Inc. System for secure metering from systems of untrusted data derived from common sources
US11405180B2 (en) 2019-01-15 2022-08-02 Fisher-Rosemount Systems, Inc. Blockchain-based automation architecture cybersecurity
CN109756418B (zh) * 2019-01-30 2021-11-16 上海风汇网络科技有限公司 一种融合货币协议的电子邮件系统、邮件发送、接收方法
US20200250633A1 (en) * 2019-02-05 2020-08-06 Moneygram International, Inc. Systems and methods for providing distributed ledger technology-based transactions
WO2020188524A1 (fr) * 2019-03-20 2020-09-24 Verint Systems Ltd. Système et procédé de désanonymisation d'actions et de messages sur des réseaux
IL272861B2 (en) * 2020-02-23 2024-03-01 Cognyte Tech Israel Ltd System and Method for Cryptocurrency Networks
WO2021248114A1 (fr) * 2020-06-05 2021-12-09 Elementus Inc. Systèmes et procédés pour quantifier et afficher électroniquement des degrés d'association entre des adresses de chaînes de blocs
US11902426B2 (en) * 2021-06-26 2024-02-13 Ceremorphic, Inc. Efficient storage of blockchain in embedded device
US12079355B2 (en) 2022-06-22 2024-09-03 Seagate Technology, Llc Performing remote hidden compute functions in one or more processing devices

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7053770B2 (en) * 2004-09-10 2006-05-30 Nivis , Llc System and method for communicating alarm conditions in a mesh network
US7804807B2 (en) * 2006-08-02 2010-09-28 Motorola, Inc. Managing establishment and removal of security associations in a wireless mesh network
US8671074B2 (en) * 2010-04-12 2014-03-11 Microsoft Corporation Logical replication in clustered database system with adaptive cloning
US8612386B2 (en) * 2011-02-11 2013-12-17 Alcatel Lucent Method and apparatus for peer-to-peer database synchronization in dynamic networks
US20130046692A1 (en) * 2011-08-19 2013-02-21 Bank Of America Corporation Fraud protection with user location verification
US20150058088A1 (en) * 2013-08-22 2015-02-26 Mastercard International Incorporated Method and system for using transaction data to assign a trade area to a merchant location
US20150170112A1 (en) * 2013-10-04 2015-06-18 Erly Dalvo DeCastro Systems and methods for providing multi-currency platforms comprising means for exchanging and interconverting tangible and virtual currencies in various transactions, banking operations, and wealth management scenarios
US9979734B2 (en) * 2015-04-20 2018-05-22 Oath Inc. Management of transactions in a distributed transaction system
US20170046670A1 (en) * 2015-06-02 2017-02-16 Elwha Llc Machine/Article/Composition/Process State(s) for Tracking Philanthropic And/or Other Efforts

Also Published As

Publication number Publication date
US20200111066A1 (en) 2020-04-09
WO2018201237A1 (fr) 2018-11-08
CA3062383A1 (fr) 2018-11-08

Similar Documents

Publication Publication Date Title
CA3062383C (fr) Systeme, dispositifs et procede d'approximation d'une origine geographique d'une transaction en cryptomonnaie
Biryukov et al. Deanonymization and linkability of cryptocurrency transactions based on network analysis
CN111556120B (zh) 基于区块链的数据处理方法、装置、存储介质及设备
TWI779231B (zh) 基於區塊鏈的存證方法和裝置
CN110460590B (zh) 区块链系统的数据管理方法、装置、介质及电子设备
JP2022512324A (ja) 外部システムに対してのセキュアな相互運用性を伴う高性能分散型記録システム
Hamdaoui et al. IoTShare: A blockchain-enabled IoT resource sharing on-demand protocol for smart city situation-awareness applications
KR20180079847A (ko) 블록체인과 dht를 이용한 p2p 거래 방법 및 장치
WO2020088074A1 (fr) Procédé et appareil de transaction de confidentialité fondés sur une chaîne de blocs et procédé et appareil d'application associés
CN110380863B (zh) 基于区块链架构的跨境支付消息通知处理方法及装置
WO2020134631A1 (fr) Procédé et appareil de traitement de données basé sur une chaîne de blocs
Li et al. EdgeWatch: Collaborative investigation of data integrity at the edge based on blockchain
Guan et al. Authledger: A novel blockchain-based domain name authentication scheme
CN112612856A (zh) 基于区块链的数据处理方法和装置
Pauley et al. Measuring and mitigating the risk of ip reuse on public clouds
Essaid et al. Network usage of bitcoin full node
US20210211286A1 (en) System and methods for data exchange using a distributed ledger
US20210035094A1 (en) Legitimacy management system, legitimacy management method, and program
Sharma et al. When blockchain meets IoT: a comparison of the performance of communication protocols in a decentralized identity solution for IoT using blockchain
Roos Identity management on the blockchain
Nwebonyi et al. Reputation-based security system for edge computing
Avdoshin et al. Bitcoin users deanonimization methods
WO2023098327A1 (fr) Procédé et appareil de traitement de bloc à base de chaîne de blocs, dispositif, support de stockage et produit-programme
WO2023082883A1 (fr) Procédé et appareil de traitement de transaction entre chaînes de blocs, et dispositif informatique, support de stockage informatique et produit-programme informatique
Liu et al. A Robust Blockchain-Based Distribution Master For Distributing Root Zone Data In DNS

Legal Events

Date Code Title Description
EEER Examination request

Effective date: 20191031